rs6000.c (rs6000_hard_regno_nregs): Adjust for e500 doubles.

rs6000.c (rs6000_hard_regno_nregs): Adjust for e500 doubles.

	* config/rs6000/rs6000.c (rs6000_hard_regno_nregs): Adjust for
	e500 doubles.
	(spe_build_register_parallel): New.
	(rs6000_spe_function_arg): Handle e500 doubles.
	(function_arg): Same.
	(spe_func_has_64bit_regs_p): Same.
	(rs6000_function_value): Same.
	(rs6000_libcall_value): Same.
	(legitimate_lo_sum_address_p): Return false for e500 doubles.

	* config/rs6000/rs6000.h (LOCAL_ALIGNMENT): Adjust for e500
	doubles.
	(DATA_ALIGNMENT): Same.
	(CANNOT_CHANGE_MODE_CLASS): Same.

From-SVN: r89582